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Sorption of Se (IV) and (VI) oxyanions from aqueous solutions

 

 Authors:    Lenka Matoušková and Helena Parschová

 

Affiliation: University of Chemistry and Technology Prague, Technická 5, 166 28 Prague 6, Czech Republic

Published in: Ion Exch. Lett. 2020, 12(1-4), 2-5

 

Permanent link to this page: http://iel.vscht.cz/abstracts/1803-4039-12-0002.htm

 

DOI: 10.35933/iel.2020.12.002

 

License:  Creative Commons License

 

Keywords: selenium; removal of selenium; aqueous solutions; sorption; treatment; sorbents; ion exchange
 

Abstract: Different types of sorbents were tested to selectively remove oxyanions of SeIV and SeVI from model solutions containing various accompanying anions (chlorides, nitrates, sulphates) that simulate real conditions and may affect the sorption of selenium oxyanions. In addition to the optimization of sorption conditions. The best results of selenite sorption were achieved with sorbent GEH (hydrated iron oxide sorbent) and selenate sorption with Purolite S110 (N-methylglucamine functional group). The optimal pH for sorption of SeIV using GEH was found to be 3 and for sorption of SeVI it was pH 4.